# print('nihao')  #打印字符串
# print("nihao")  #也是打印字符串
# print(233)      #打印数字
# print("看这风景美如画",end='，')
# print("本想吟诗走天下",end='。')
# print()
# print("看这风景美如画",end="，本想吟诗走天下。")
# print('\n',2**4)
# print(3*'欢迎来到小峰编程\n')
# print('你应该找我'+'五元')
# print(1>2,True,1==1)
# name=input("Enter your name: ")
# if name =="xiaofeng":
#     print("登录成功！")
# else:
#     print("密码或用户名错误！")
# print(1 > 2)
# print(1 == 3)
# print("alex" == "eric")
# print(1 == "alex")
# print(1 > "alex") 报错，不能比较
#print(int("aaa"))   #报错不能转化
# print(int(True),int(False))
# age = 18
# name = "alex"
# flag = 1 > 18
# addr = "北京昌平" + "沙河" + name   # "北京昌平沙河alex"
# print(addr)
# print(flag)
"""age = 18
number = 1 == 2
print(age)
print(number)"""
#模拟10086客服:
"""print("欢迎致电10086，我们提供了如下服务： 1.话费相关；2.业务办理；3.人工服务")
choice1=input("请选择服务号：")
if choice1=="1":
    print("话费查询相关业务")
    choice2=input("查话费请按1，交话费请按2：")
    if choice2=="1":
        print("剩余话费：100元")
    elif choice2=="2":
        print("交话费中")
    else:
        print("输入错误")
elif choice1=="2":
    print("业务查询")
elif choice1=="3":
    print("正在转接人工客服")
else:
    print("输入错误")"""
